In terms of precipitation, rainfall in Cape Cod and the Islands ranges from 1.6 - 4.3 inches per month. January is typically the wettest month, when rainfall can reach 4.3 in. June is typically the driest time to visit Cape Cod and the Islands when rainfall is around 1.6 in.

If weather is an important factor for your trip to Cape Cod and the Islands, use this chart to help with planning. For those seeking warmer temperatures, July is the ideal time of year to visit, when temperatures reach an average of 66.2 F. Travelers looking to avoid the cold should look outside of February, when temperatures are typically at their lowest (around 32.0 F).

How far in advance should I book a flight from Illinois to Cape Cod and the Islands?

To save on the cost of your flight from Illinois to Cape Cod and the Islands, book at least 53 days before your planned departure. Booking around this time can save you about 80% on the cost of this flight compared to booking a flight leaving this week. We have found prices from $207 if you need a flight within two weeks. For flights within the next 72 hours, you can find tickets from as low as $372.

What is the cheapest month to fly from Illinois to Cape Cod and the Islands?

Flights from Illinois to Cape Cod and the Islands lean towards being more expensive in April. Prices are generally better when you fly from Illinois to Cape Cod and the Islands in September, with the cheapest ticket starting at $66.

How can I find direct flights from Illinois to Cape Cod and the Islands?

After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Cape Cod and the Islands.

Can I find deals for business class flights from Illinois to Cape Cod and the Islands?

Yes. Cheapflights offers flight deals from Illinois to Cape Cod and the Islands by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

$96+ Flights from Illinois to Cape Cod and the Islands

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Cheap flight deals from Illinois to Cape Cod and the Islands

Round-trip from	$232 (JetBlue)
One-way from	$96 (JetBlue)
Popular in	April
Cheapest in	September
Average price	$220

From Illinois to Cape Cod and the Islands

Search Deals

One-way flight from Illinois to Cape Cod and the Islands

Search Deals

Highest demand for flights based on searches. 8% potential increase in price ($20 potential increase over avg. RT price).

Search Deals

Cheapest flight prices on average. 1% potential price decrease ($5 potential savings vs. average RT price).

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Average for round-trip flights in August 2025

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Find flight deals from Illinois to Cape Cod and the Islands

Cheapest flights from Illinois to Cape Cod and the Islands
Explore the most affordable flight options available from Illinois to Cape Cod and the Islands. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

Tue 9/96:45 amORD - ACK

1 stop6h 26mJetBlue

Fri 9/124:10 pmACK - ORD

1 stop5h 39mJetBlue

Deal found 8/14

$232

Tue 9/306:45 amORD - ACK

1 stop6h 26mJetBlue

Thu 10/24:20 pmACK - ORD

1 stop5h 29mJetBlue

Deal found 8/14

$264

Sat 8/1611:12 amORD - HYA

Nonstop2h 39mAmerican Airlines

Sat 8/233:25 pmHYA - ORD

Nonstop3h 06mAmerican Airlines

Deal found 8/14

$286

Thu 8/216:15 amORD - ACK

1 stop8h 08mJetBlue

Thu 8/284:18 pmACK - ORD

1 stop7h 10mJetBlue

Deal found 8/13

$292

Fri 9/199:51 amORD - ACK

1 stop4h 22mJetBlue

Sun 9/214:10 pmACK - ORD

1 stop5h 39mJetBlue

Deal found 8/12

$334

Fri 10/39:51 amORD - ACK

1 stop4h 14mJetBlue

Sun 10/54:20 pmACK - ORD

1 stop5h 30mJetBlue

Deal found 8/14

$353

Sat 8/1611:12 amORD - HYA

Nonstop2h 39mAmerican Airlines

Tue 8/261:44 pmHYA - ORD

1 stop5h 08mAmerican Airlines

Deal found 8/14

$366

Fri 8/228:09 amORD - ACK

1 stop7h 27mAmerican Airlines

Mon 8/255:16 pmACK - ORD

1 stop7h 09mAmerican Airlines

Deal found 8/12

$368

Tue 8/196:00 amORD - HYA

1 stop6h 13mAmerican Airlines

Tue 8/261:44 pmHYA - ORD

1 stop5h 08mAmerican Airlines

Deal found 8/14

$376

Wed 8/206:00 amORD - ACK

1 stop6h 11mAmerican Airlines

Sat 8/235:45 pmACK - ORD

Nonstop3h 05mAmerican Airlines

Deal found 8/13

$399

Thu 8/219:55 amORD - ACK

1 stop5h 00mAmerican Airlines

Thu 8/285:16 pmACK - ORD

1 stop7h 09mAmerican Airlines

Deal found 8/12

$403

Sat 8/1611:12 amORD - HYA

Nonstop2h 39mAmerican Airlines

Fri 8/221:44 pmHYA - ORD

1 stop7h 50mAmerican Airlines

Deal found 8/14

$404

Best flights from Illinois to Cape Cod and the Islands
Discover carefully curated flight deals from Illinois to Cape Cod and the Islands that have cost, travel time, and layovers in mind to ensure you get the best travel experience. Data last updated August 14, 2025.

Tue 9/96:45 amORD - ACK

1 stop6h 26mJetBlue

Fri 9/124:10 pmACK - ORD

1 stop5h 39mJetBlue

Deal found 8/14

$232

Tue 8/196:00 amORD - HYA

1 stop6h 13mAmerican Airlines

Sat 8/233:25 pmHYA - ORD

Nonstop3h 06mAmerican Airlines

Deal found 8/14

$366

Mon 8/259:15 pmORD - ACK

2 stops17h 05mUnited Airlines

Wed 8/276:46 pmACK - ORD

2 stops14h 19mUnited Airlines

Deal found 8/13

$409

Tue 9/306:45 amORD - ACK

1 stop6h 26mJetBlue

Thu 10/24:20 pmACK - ORD

1 stop5h 29mJetBlue

Deal found 8/14

$264

Mon 8/259:30 amMDW - ACK

2 stops29h 39mDelta

Wed 8/274:49 pmACK - MDW

2 stops16h 46mDelta

Deal found 8/12

$624

Thu 8/216:15 amORD - ACK

1 stop8h 08mJetBlue

Thu 8/284:18 pmACK - ORD

1 stop7h 10mJetBlue

Deal found 8/13

$292

Thu 10/94:31 pmORD - MVY

3 stops24h 04mMultiple Airlines

Wed 10/153:10 pmMVY - ORD

3 stops31h 48mMultiple Airlines

Deal found 8/12

$663

Fri 8/228:09 amORD - ACK

1 stop7h 27mAmerican Airlines

Mon 8/255:16 pmACK - ORD

1 stop7h 09mAmerican Airlines

Deal found 8/12

$368

Fri 9/199:51 amORD - ACK

1 stop4h 22mJetBlue

Sun 9/214:10 pmACK - ORD

1 stop5h 39mJetBlue

Deal found 8/12

$334

Tue 8/196:00 amORD - HYA

1 stop6h 13mAmerican Airlines

Tue 8/261:44 pmHYA - ORD

1 stop5h 08mAmerican Airlines

Deal found 8/14

$376

Fri 10/39:51 amORD - ACK

1 stop4h 14mJetBlue

Sun 10/54:20 pmACK - ORD

1 stop5h 30mJetBlue

Deal found 8/14

$353

Wed 8/206:06 amORD - ACK

1 stop4h 48mAmerican Airlines

Sat 8/235:45 pmACK - ORD

Nonstop3h 05mAmerican Airlines

Deal found 8/13

$399

Last-minute flights from Illinois to Cape Cod and the Islands
Discover last-minute flight deals from Illinois to Cape Cod and the Islands. Data last updated August 14, 2025 and is based on user searches.

Wed 8/206:00 amORD - ACK

1 stop6h 11mAmerican Airlines

Sat 8/235:45 pmACK - ORD

Nonstop3h 05mAmerican Airlines

Deal found 8/13

$399

Wed 8/208:40 amORD - PVC

1 stop7h 59mJetBlue

Thu 8/218:56 amPVC - ORD

1 stop7h 36mJetBlue

Deal found 8/14

$705

Wed 8/205:16 pmORD - ACK

3 stops41h 59mMultiple Airlines

Sat 8/2311:21 amACK - ORD

2 stops12h 01mMultiple Airlines

Deal found 8/13

$769

Wed 8/208:40 amORD - HYA

1 stop7h 58mJetBlue

Thu 8/215:15 pmHYA - ORD

1 stop6h 13mJetBlue

Deal found 8/14

$852

Thu 8/216:15 amORD - ACK

1 stop8h 08mJetBlue

Thu 8/284:18 pmACK - ORD

1 stop7h 10mJetBlue

Deal found 8/13

$292

Thu 8/216:00 amSTL - MVY

1 stop5h 02mAmerican Airlines

Thu 8/2812:00 pmMVY - STL

1 stop5h 14mAmerican Airlines

Deal found 8/14

$516

Thu 8/219:55 amORD - ACK

1 stop5h 00mAmerican Airlines

Thu 8/285:16 pmACK - ORD

1 stop7h 09mAmerican Airlines

Deal found 8/14

$568

Sat 8/236:15 amORD - MVY

1 stop8h 46mJetBlue

Mon 8/2510:16 amMVY - ORD

1 stop6h 16mJetBlue

Deal found 8/12

$771

Sat 8/2310:13 amORD - MVY

Nonstop2h 35mAmerican Airlines

Mon 8/252:46 pmMVY - ORD

1 stop5h 40mAmerican Airlines

Deal found 8/12

$789

Sun 8/246:15 amORD - MVY

1 stop8h 46mJetBlue

Thu 8/2810:06 amMVY - ORD

1 stop6h 26mJetBlue

Deal found 8/12

$708

Sun 8/245:20 amORD - MVY

2 stops7h 56mAmerican Airlines

Thu 8/282:03 pmMVY - ORD

1 stop8h 08mAmerican Airlines

Deal found 8/12

$861

Sun 8/2410:12 amORD - MVY

3 stops19h 28mMultiple Airlines

Thu 8/2812:35 pmMVY - ORD

3 stops34h 47mMultiple Airlines

Deal found 8/12

$923

One-way flights from Illinois to Cape Cod and the Islands
Search for one-way flight options from Illinois to Cape Cod and the Islands. Find affordable one-way fares based on user searches. Data last updated August 14, 2025.

Tue 9/96:45 amORD - ACK

1 stop6h 26mJetBlue

Deal found 8/12

$96

Sat 8/306:15 amORD - ACK

1 stop4h 38mJetBlue

Deal found 8/13

$136

Wed 8/206:15 amORD - ACK

1 stop4h 38mJetBlue

Deal found 8/12

$156

Fri 10/39:51 amORD - HYA

1 stop6h 47mJetBlue

Deal found 8/12

$174

Tue 9/911:57 amORD - HYA

2 stops26h 13mMultiple Airlines

Deal found 8/13

$187

Fri 9/129:51 amORD - ACK

1 stop6h 09mJetBlue

Deal found 8/13

$193

Sat 8/3010:13 amORD - MVY

Nonstop2h 35mAmerican Airlines

Deal found 8/12

$195

Fri 9/56:59 pmORD - ACK

2 stops15h 01mJetBlue

Deal found 8/14

$198

Tue 9/169:05 pmORD - ACK

2 stops16h 46mUnited Airlines

Deal found 8/13

$202

Sun 8/316:06 amORD - ACK

1 stop9h 40mAmerican Airlines

Deal found 8/12

$203

Fri 9/121:35 pmORD - HYA

1 stop18h 56mJetBlue

Deal found 8/13

$206

Sat 9/1311:57 amORD - HYA

2 stops31h 30mMultiple Airlines

Deal found 8/12

$213

Cheapflights Fare Finder

Use the filters below to find and compare flights from Illinois to Cape Cod and the Islands that are best for you.

Fly from

Fly to

Route

Depart

Return

Price

ChicagoNantucket

ORD - ACK

ORDACK

Chicago O'Hare Intl

Tue 9/9

6:45 am-2:11 pm

1 stop6h 26m

Nantucket Memorial

Fri 9/12

4:10 pm-8:49 pm

1 stop5h 39m

$232

ChicagoNantucket

ORD - ACK

ORDACK

Chicago O'Hare Intl

Tue 9/30

6:45 am-2:11 pm

1 stop6h 26m

Nantucket Memorial

Thu 10/2

4:20 pm-8:49 pm

1 stop5h 29m

$264

ChicagoNantucket

ORD - ACK

ORDACK

Chicago O'Hare Intl

Thu 8/21

6:15 am-3:23 pm

1 stop8h 08m

Nantucket Memorial

Thu 8/28

4:18 pm-10:28 pm

1 stop7h 10m

$292

ChicagoNantucket

ORD - ACK

ORDACK

Chicago O'Hare Intl

Fri 9/19

9:51 am-3:13 pm

1 stop4h 22m

Nantucket Memorial

Sun 9/21

4:10 pm-8:49 pm

1 stop5h 39m

$334

ChicagoNantucket

ORD - ACK

ORDACK

Chicago O'Hare Intl

Fri 10/3

9:51 am-3:05 pm

1 stop4h 14m

Nantucket Memorial

Sun 10/5

4:20 pm-8:50 pm

1 stop5h 30m

$353

ChicagoHyannis

ORD - HYA

ORDHYA

Chicago O'Hare Intl

Tue 8/19

6:00 am-1:13 pm

1 stop6h 13m

Hyannis Barnstable

Sat 8/23

3:25 pm-5:31 pm

Nonstop3h 06m

$366

ChicagoNantucket

ORD - ACK

ORDACK

Chicago O'Hare Intl

Fri 8/22

8:09 am-4:36 pm

1 stop7h 27m

Nantucket Memorial

Mon 8/25

5:16 pm-11:25 pm

1 stop7h 09m

$368

ChicagoHyannis

ORD - HYA

ORDHYA

Chicago O'Hare Intl

Tue 8/19

6:00 am-1:13 pm

1 stop6h 13m

Hyannis Barnstable

Tue 8/26

1:44 pm-5:52 pm

1 stop5h 08m

$376

ChicagoNantucket

ORD - ACK

ORDACK

Chicago O'Hare Intl

Wed 8/20

6:06 am-11:54 am

1 stop4h 48m

Nantucket Memorial

Sat 8/23

5:45 pm-7:50 pm

Nonstop3h 05m

$399

ChicagoNantucket

ORD - ACK

ORDACK

Chicago O'Hare Intl

Thu 8/21

9:55 am-3:55 pm

1 stop5h 00m

Nantucket Memorial

Thu 8/28

5:16 pm-11:25 pm

1 stop7h 09m

$403

Flights are sorted by cheapest round-trip flights first.

Deals found on 8/12

Showing 1-10 of 60 results

...

Best time to book a flight from Illinois to Cape Cod and the Islands

Have a flexible travel schedule? Discover the best time to fly to Cape Cod and the Islands from Illinois with our price prediction graph.

Estimated round-trip price

Rates are based on past data. Find the cheapest month and day to book your flight based on your travel requirements, then search for cheap deals.

Cheapflights Insights

Everything you need to know about your flight from Illinois to Cape Cod and the Islands

What is the cheapest time of day to fly from IL to KDT?

Regardless of the time of day you decide to fly, the ticket price will remain around the same. Book flights from Illinois to Cape Cod and the Islands as you normally would.

Related info for your journey

Can I find deals for flights from Illinois to Cape Cod and the Islands that include hotel bookings?
Yes. In addition to deals on Illinois to Cape Cod and the Islands flights, Cheapflights offers vacation packages that include both flights and hotel.
How can I find direct flights from Illinois to Cape Cod and the Islands?
After entering your origin and destination, apply the non-stop filter on the search result page to find direct flights from Illinois to Cape Cod and the Islands.
Can I find deals for business class flights from Illinois to Cape Cod and the Islands?
Yes. Cheapflights offers flight deals from Illinois to Cape Cod and the Islands by cabin class. In addition to browsing deals, you can also filter by cabin class on the search results page after making a search.

Browse thousands of different options on Cheapflights for your next trip

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Complete your trip

Massachusetts car rentals

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Hyannis car rentals

Top 3 airlines flying from Illinois to Cape Cod and the Islands

Airline	Cheapest	Average	Flexibility	On-time
JetBlue	Cheapest$226	Average$572	FlexibilityNo cancel fee	On-time62%
United Airlines	Cheapest$304	Average$620	FlexibilityNo cancel fee	On-time69%
American Airlines	Cheapest$359	Average$548	FlexibilityNo cancel fee	On-time71%

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$96+ Cheap flights from Illinois to Cape Cod and the Islands

This is the cheapest one-way flight price found by a Cheapflights user in the last 72 hours by searching for a flight departing on 9/9. Fares are subject to change and may not be available on all flights or dates of travel.

Find cheap flights from Illinois to Cape Cod and the Islands with Cheapflights

1. Tell us where you want to go

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3. Compare prices and book

Cheap flight deals from Illinois to Cape Cod and the Islands

Keep the following information in mind while searching for Illinois to Cape Cod and the Islands flight deals. Data was last updated August 14, 2025.

Round-trip from

One-way from

Popular in

Cheapest in

Average price

Find flight deals from Illinois to Cape Cod and the Islands

Cheapest flights from Illinois to Cape Cod and the IslandsExplore the most affordable flight options available from Illinois to Cape Cod and the Islands. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

Explore the most affordable flight options available from Illinois to Cape Cod and the Islands. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.

Cheapflights Fare Finder

Use the filters below to find and compare flights from Illinois to Cape Cod and the Islands that are best for you.

Best time to book a flight from Illinois to Cape Cod and the Islands

Have a flexible travel schedule? Discover the best time to fly to Cape Cod and the Islands from Illinois with our price prediction graph.

Cheapflights Insights

Everything you need to know about your flight from Illinois to Cape Cod and the Islands

What is the cheapest time of day to fly from IL to KDT?

Find hourly flight availability from Illinois to Cape Cod and the Islands. Discover flight options and departure times throughout the day, allowing you to choose a departure time that suits your schedule. Data last updated August 14, 2025.

Related info for your journey

Find useful and relevant information for your journey from Illinois to Cape Cod and the Islands. Access travel guides, tips, and recommendations to enhance your travel experience. Get information about local attractions, weather, transportation options, and more.

Can I find deals for flights from Illinois to Cape Cod and the Islands that include hotel bookings?

How can I find direct flights from Illinois to Cape Cod and the Islands?

Can I find deals for business class flights from Illinois to Cape Cod and the Islands?

Browse thousands of different options on Cheapflights for your next trip

Toggle through the tabs below to find thousands of options on Cheapflights for your next trip.

Alternative routes for Illinois to Cape Cod and the Islands

See prices for flight routes from nearby airports that may be better suited for you.

Top 3 airlines flying from Illinois to Cape Cod and the Islands

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Cheapest flights from Illinois to Cape Cod and the Islands
Explore the most affordable flight options available from Illinois to Cape Cod and the Islands. Find the lowest fares from popular airlines and budget airlines, with prices last updated on August 14, 2025.